Spherical RollerBearings for

Vibrating ScreensCat. No. A-1800

BEARINGSROLLERSPHERICAL

1. Well suited for applications with radialand thrust loads.

2. Integral ribs and inner raceway insureproper roller guidance even at high speed.

3. Outer ring guided machined brass cagefor impact resistance

1. Longer than standard roller length for greaterload capacity.

2. Center rib is eliminated to allow longer rollers.3. Rotating torque is minimized by roller-to-roller

rolling contact.4. Outer ring guided machined brass cage for

impact resistance

Note: In the UA Type, each roller inner end is in rolling contact with the adjacent roller of the other row. This design reduces internal friction and wear.

Special Spherical Roller Bearings

B Type (Standard) UA Type (High Capacity)

SCREENSVIBRATINGVibrating Screens are also known as ShakerScreens. Bearings in these applications aresubjected to very severe operating condi-tions. The shaking action of the screensubjects the bearings to very heavy loadsincluding impact loads. Additional loadingon the bearing is created by the higher“g” forces generated by higher accelerationpresent in the application. Heavy loadsresult in higher shaft and housing deflec-tions. This requires the bearing to accom-modate the resulting misalignment.Bearings are also subjected to higherspeeds and contaminated environments.

NTN has designed a special line of spheri-cal roller bearings to operate under verysevere operating conditions present invibrating screen applications. Specialfeatures in NTN bearings, as described inthe benefits and features chart, result inhigher bearing life and less equipmentdown time.

Special NTN spherical roller bearings forvibrating screen applications are availablein 22300 and 23300 series. These bearings

are available in two configurations, B typeand UA type as described below. The UAtype is designed for heavy load applica-tions.

Adding suffix VS1 or VS2 to the standardpart number will automatically provide thenecessary bearing for vibrating screenapplications.

VS1: In addition to the other features listedin the benefits and features chart, itincludes a special specification for radialinternal clearance. The clearance range issimilar to C3, but the lower third of the C3range is eliminated for better control of thebearing clearance after mounting.

Examples: 22313BVS1, 22318UAVS1

VS2: In addition to the other features listedin the benefits and features chart, itincludes a special specification for radialinternal clearance. The clearance range issimilar to C4, but the lower third of the C4range is eliminated for better control of thebearing clearance after mounting.

Examples: 22313BVS2, 22318UAVS2

FOR

• Bearings take veryheavy loads,including impactloads

• Extra load createdby higher “g” forcespresent

• Heavy loads equalhigher shaft andhousing deflections

• Bearings aresubjected to highspeed and are in acontaminated area

• Vibrating screenbearings in 22300and 23300 series

Quick Look

d ≤ 65 mm 75 ~ 90 100 ~ 120

65 < d ≤ 80 mm 90 ~ 110 120 ~ 14580 < d ≤ 100 mm 110 ~ 135 150 ~ 180100 < d ≤ 120 mm 135 ~ 160 180 ~ 210120 < d ≤ 140 mm 160 ~ 190 205 ~ 240140 < d ≤ 160 mm 190 ~ 220 240 ~ 280160 < d ≤ 180 mm 200 ~ 240 260 ~ 310180 < d ≤ 200 mm 220 ~ 260 285 ~ 340

Special Radial ClearanceBore Radial Clearance Radial Clearance

Diameter VS1 Suffix (0.001 mm) VS2 Suffix (0.001 mm)

D ≤ 150 mm -0.005 ~ -0.013

150 < D ≤ 180 mm -0.005 ~ -0.018180 < D ≤ 315 mm -0.010 ~ -0.023315 < D ≤ 400 mm -0.013 ~ -0.028

Reduced OD ToleranceNominal OD OD Tolerance (mm)

The required fits between the bearing inner and outer ring diameter surfaces and their mating parts depends on applica-tion conditions. Bearings in vibrating screen applications are subjected to higher impact loads. Special fits are requiredto prevent inner and outer ring creep. Shaft diameter and housing bore diameter recommended for normal vibratingscreen applications are given in the tables below. For specific fit recommendations, please contact NTN engineering.

The special tolerances of the bore, OD, and radial internal clearances are designed to accommodate the heavy press fitstypically used for the vibrating screen application. This results in a more consistent radial clearance after mounting.

TOLERANCES

SHAFT & HOUSING FITS

d ≤ 80 mm 0 ~ -0.010

80 < d ≤ 120 mm 0 ~ -0.013120 < d ≤ 180 mm 0 ~ -0.015180 < d ≤ 200 mm 0 ~ -0.018

Reduced Bore ToleranceBore Diameter Bore Tolerance (mm)

** Shaft fit code h6** Housing fit code P7Note: It is recommended that the shaft roundness and cylindricity be less than

half the shaft diameter tolerance and the housing bore roundness andcylindricity error be less than half the housing bore diameter tolerance.

Recommended Housing Bore DiametersOuter Ring Diameter Housing Bore**

(mm) (0.001 mm)over incl max min

50 80 -21 -51

80 120 -24 -59

120 180 -28 -68

180 250 -33 -79

250 315 -36 -88

315 400 -41 -98

400 500 -45 -108

Recommended Shaft DiametersNominal Diameter Shaft Diameter Tolerance*

(mm) (0.001 mm)over incl max min

30 50 0 -16

50 80 0 -19

80 120 0 -22

120 180 0 -25

180 250 0 -29

D d

Br

r

Bearing Boundary Dimensions Load Ratings Constant Axial Load Factor Massmm kN kg

d D B rs min Cr Cor e Y1 Y2 Y0

22308C 40 90 33 1.5 121 128 0.38 1.76 2.62 1.72 .974

22309C 45 100 36 1.5 148 167 0.36 1.86 2.77 1.82 1.33

22310C 50 110 40 2 186 212 0.37 1.80 2.69 1.76 1.79

22311B 55 120 43 2 204 234 0.40 1.68 2.50 1.64 2.30

22312B 60 130 46 2.1 238 273 0.42 1.62 2.42 1.59 2.90

22313B 65 140 48 2.1 265 320 0.38 1.79 2.67 1.75 3.45

22314UA 70 150 51 2.1 340 410 0.31 2.14 3.19 2.10 4.48

22315UA 75 160 55 2.1 385 495 0.32 2.11 3.14 2.06 5.56

22316UA 80 170 58 2.1 420 525 0.31 2.14 3.19 2.10 6.55

22317UA 85 180 60 3 455 570 0.31 2.19 3.25 2.14 7.59

22318UA 90 190 64 3 520 650 0.31 2.16 3.21 2.11 9.00

23318B 90 190 73 3 495 650 0.42 1.63 2.42 1.59 9.59

22319UA 95 200 67 3 565 720 0.31 2.18 3.25 2.14 10.4

22320UA 100 215 73 3 675 865 0.32 2.13 3.18 2.09 13.3

22322UA 110 240 80 3 835 1090 0.33 2.03 3.02 1.98 18.3

23322 110 240 92.1 3 815 1110 0.43 1.59 2.36 1.55 20.2

22324UA 120 260 86 3 945 1230 0.31 2.16 3.22 2.11 23.0

23324 120 260 106 3 905 1250 0.44 1.54 2.29 1.51 26.6

22326UA 130 280 93 4 1090 1440 0.32 2.14 3.19 2.09 28.7

23326 130 280 112 4 1060 1480 0.44 1.52 2.27 1.49 32.3

22328UA 140 300 102 4 1280 1710 0.32 2.09 3.11 2.04 36.1

23328 140 300 118 4 1120 1600 0.42 1.60 2.38 1.56 38.8

22330UA 150 320 108 4 1430 2040 0.32 2.10 3.13 2.05 43.4

23330 150 320 128 4 1280 1830 0.43 1.58 2.35 1.54 47.8

22332UA 160 340 114 4 1530 2210 0.32 2.12 3.16 2.08 51.6

23332 160 340 136 4 1580 2300 0.43 1.58 2.35 1.54 57.7

22334UA 170 360 120 4 1720 2520 0.32 2.13 3.17 2.08 60.7

22336UA 180 380 126 4 1920 2920 0.32 2.14 3.19 2.09 71.4

22338UA 190 400 132 5 2090 3200 0.31 2.16 3.22 2.11 82.6

22340UA 200 420 138 5 2230 3400 0.31 2.16 3.22 2.11 95.4

Equivalent Bearing LoadFa

Fr

<=

eFa

Fr

>e

X Y X Y1 Y1 0.67 Y2

Dynamic Static

Pr = XFr + YFa Por = Fr + YoFa

Bearing Load Formulas

UA TypeB Type

Dynamic Static

Note: 40, 45 and 50 mm bore bearings use the C design, which is similar to the B design. The only difference is that the inner ring flange is like a floatingguide ring and is not an integral part of the ring.

D d

Br

r

VIBRATING SCREENSB E A R I N G F E A T U R E S A N D B E N E F I T S C H A R T

U A - T Y P E S P H E R I C A L R O L L E R B E A R I N G S F O R V I B R A T I N G S C R E E N A P P L I C A T I O N S

Feature1. Extra capacity bearing with larger rollers

2. Roller ends designed for minimumrolling friction

3. Brass cage with heavy sectionthickness improves roller guidance

4. Outer ring riding cage improvesroller guidance

5. Open-end cage design

6. Circumferential lubrication groove andholes in outside diameter of the bearing

7. No flange in the center of inner ring

8. Reduced tolerance for bearing bore; lowerhalf of the standard boretolerance has been eliminated

9. Reduced tolerance on bearingoutside diameter

10. Reduced C3 or C4 bearing clearancetolerance; lower 1/3 of the standardC3 or C4 clearance has been eliminated

11. High quality vacuum degassed,roll forged steel

Benefit• Longer bearing life

• Improves lubrication and lowersoperating temperatures

• Reduces friction• Longer bearing life

• Less cage wear and longer bearing life

• Improves bearing lubrication

• Improves bearing lubrication

• Improves bearing lubrication

• Consistent shaft fit for uniformbearing mounting on the shaft

• Contributes to increased resistanceto heavy impact loads

• Consistent housing fit for uniformbearing mounting in the housing

• Contributes to increased resistanceto heavy impact loads

• Ensures uniform clearance under allloading and mounting conditions

• Better load sharing among rollersfor longer life

• Consistently higher bearing life

NTN

U

U

U

U

U

U

U

U

U

U

UNote: Features one and two are not available in the B type design.

NTN

22308CVS2

22309CVS2

22310CVS2

22311BVS2

22312BVS2

22313BVS2

22314UAVS2

22315UAVS2

22316UAVS2

22317UAVS2

22318UAVS2

22319UAVS2

22320UAVS2

22322UAVS2

22324UASV2

22326UAVS2

22328UAVS2

22330UAVS2

22332UAVS2

22334UAVS2

22336UAVS2

22338UAVS2

22340UAVS2

23318BVS2

23322BVS2

23324BVS2

23326BVS2

23328BVS2

23330BVS2

23332BVS2

FAG

22308ES.TVPB.T41A / 22308EAS.MA.T41A

22309ES.TVPB.C4.F80 / 22309EAS.MA.T41A

22310ES.TVPB.C4.F80 / 22310EAS.MA.T41A

22311ES.TVPB.C4.F80 / 22311EAS.MA.T41A

22312EAS.MA.C4.F80 / 22312EAS.MA.T41A

22313ES.TVPB.C4.F80 / 22313EAS.MA.T41A

22314ES.TVPB.C4.F80 / 22314EAS.MA.T41A

22315AS.MA.C4F80 / 22315EAS.MA.T41A

22316ES.TVPB.C4.F80 / 22316EAS.MA.T41A

22317EAS.MA.C4.F80 / 22317EAS.MA.T41A

22318EAS.MA.C3.F80 / 22318EAS.MA.T41A

22319ES.TVPB.C4.F80 / 22319EAS.MA.T41A

22320EAS.MA.C4.F80 / 22320EAS.MA.T41A

22322EAS.MA.C4.F80 / 22322EAS.MA.T41A

22324ES.TVPB.C4.F80 / 22324EAS.MA.T41A

22326EAS.MA.C4.F80 / 22326EAS.MA.T41A

22328ES.TVPB.C4.F80 / 22328EAS.MA.T41A

22330EAS.MA.C4.F80 / 22330EAS.MA.T41A

22332A.MA.C4.F80.W207BB / 22332A.MA.T41A

22334ES.TVPB.C4.F80 / 22334A.MA.T41

22336A.MA.C4F80 / 22336A.MA.T41A

22338A.MA.C4.F80 / 22338A.MA.T41A

22340A.MA.C4.F80 / 22340A.MA.T41A

22318EAS.MA.T41A

22322EAS.MA.T41A

23324EAS.MA.T41A

23326EAS.MA.T41A

23328EAS.MA.T41A

23330EAS.MA.T41A

23332EAS.MA.T41A

SKF

452308CACM2/W502

452309CACM2/W502

452310CACM2/W502

452311CACM2/W502

452312CACM2/W502

452313CACM2/W502

452314CACM2/W502

452315CACM2/W502

452316CACM2/W502

452317CACM2/W502

452318CACM2/W502

452319CACM2/W502

452320CACM2/W502

452322CACM2/W502

452324CACM2/W502

452326CACM2/W502

452328CACM2/W502

452330CACM2/W502

452332CACM2/W502

452334CACM2/W502

452336CACM2/W502

452338CACM2/W502

452340CACM2/W502

453318CACM2/W502

453322CACM2/W502

453324CACM2/W502

453326CACM2/W502

453328CACM2/W502

453330CACM2/W502

453332CACM2/W502

TORRINGTON

22308W22BRC4

22309YMW33W800C4

22310YMW33W800C4

22311YMW33W800C4

22312YMW33W800C4

22313YMW33W800C4

22314YMW33W800C4

22315YMW33W800C4

22316YMW33W800C4

22317YMW33W800C4

22318YMW33W800C4

22319YMW33W800C4

22320YMW33W800C4

22322YMW33W800C4

22324YMW33W800C4

22326YMW33W800C4

22328YMW33W800C4

22330YMW33W800C4

22332YMW33W800C4

22334YMW33W800C4

22336YMW33W800C4

22338YMW33W800C4

22340YMW33W800C4

23318YMW33W800C4

23322YMW33W800C4

23324YMW33W800C4

23326YMW33W800C4

23328YMW33W800C4

23330YMW33W800C4

23332YMW33W800C4

Vibrating Screen Bearing Interchange

Contact Informationwww.ntnamerica.com

Corporate Office 1600 East Bishop Court, Mt. Prospect, Illinois 60056 Phone 800-468-6528Central Region 111 West Washington Street, Suite 310, East Peoria, Illinois 61611 Phone 800-545-0434Eastern Region 650 Pennsylvania Avenue, Exton, Pennsylvania 19341 Phone 800-394-4686Great Lakes Region 1600 East Bishop Court, Mt. Prospect, Illinois 60056 Phone 800-252-8123Southeast Region 5475 Peachtree Industrial Boulevard, Norcross, Georgia 30071 Phone 800-241-0568Western Region 2551 S.W. Grapevine Parkway, Grapevine, Texas 76051 Phone 800-441-0825Automotive Group 39255 West 12 Mile Road, Farmington Hills, Michigan 48331 Phone 800-929-3892

Note: For vibrating screen manufacturers’ interchange, please consult NTN engineering.